Why does the sun appear red at sunrise ?

Why does the sun appear red at sunset ?

With the help of a labelled diagram. Explain why the sun appears reddish at sunrise and sunset.

What is meant by scattering of light ? Use this phenomenon to explain why the clear sky appears blue or why the sun appears reddish at sunrise.

Why does the Sun appear reddish at the sunrise and the sunset ?

Why does the Sun appear reddish at the time of sunset ?